[MSDN Library June 1998] EqualRgn (31.6964285714286%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > GDI > Regions > Region Reference > Region Functions

[MSDN Library April 2000] EqualRgn (31.6964285714286%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > Windows GDI > Regions > Region Reference > Region Functions